House extension out of concrete panels

[Beefsmith]

I’m looking at knocking an aged conservatory down and then putting an bigger extension on the farm house in its place. I haven’t asked an architect yet or local planners so only thinking out loud at the minute, but has anybody ever or know of a house extension built out of concrete panels. I’m looking at something that’s 2 story. As a stand-alone basically it would be 6m x 10m give or take and be 6m high.
Ive spoken to a concrete panel supplier and basically they make 150mm thick reinforced panels x 1m high and any length up to 8m for roughly £250 each. This means I can get the 3 external wall panels for about £7,000. This includes 1m of panels underground for foundations. These would be held in place by metal gurders on each corner and in the middle of the 10m run.
We can set these into the existing farmhouse wall to join the extension into the farmhouse. We could do all that ourselves with the assistance of a local one man band farm shed maker. We could also then put in the ceiling separating the ground and first floor as well as putting on a slightly pitched flat roof.
Very roughly fag packet figures we could do that for around £15,000 which is double counting farm labour we are paying anyway even if we don’t do this ourselves. Includes all metal work.

At that point I’d then get in some carpenters to create the rooms which effectively would be 3 upstairs and a single space downstairs and then obviously plumber and electrician.

Once that’s up and watertight then we’d knock through from the existing farmhouse ourselves before getting a plasterer and decorator etc. Finally we’d paint the outside of the panels so it doesn’t look like panels etc.

As I said I’ve not got drawings and not asked a builder for a quote using normal brickwork so I’ve nothing to compare to but 6m x 10m x 2 stories is 120 sqm so I can’t see it being less than £50,000.

Any views?

 

[bobk]

I’m looking at knocking an aged conservatory down and then putting an bigger extension on the farm house in its place. I haven’t asked an architect yet or local planners so only thinking out loud at the minute, but has anybody ever or know of a house extension built out of concrete panels. I’m looking at something that’s 2 story. As a stand-alone basically it would be 6m x 10m give or take and be 6m high.
Ive spoken to a concrete panel supplier and basically they make 150mm thick reinforced panels x 1m high and any length up to 8m for roughly £250 each. This means I can get the 3 external wall panels for about £7,000. This includes 1m of panels underground for foundations. These would be held in place by metal gurders on each corner and in the middle of the 10m run.
We can set these into the existing farmhouse wall to join the extension into the farmhouse. We could do all that ourselves with the assistance of a local one man band farm shed maker. We could also then put in the ceiling separating the ground and first floor as well as putting on a slightly pitched flat roof.
Very roughly fag packet figures we could do that for around £15,000 which is double counting farm labour we are paying anyway even if we don’t do this ourselves. Includes all metal work.

At that point I’d then get in some carpenters to create the rooms which effectively would be 3 upstairs and a single space downstairs and then obviously plumber and electrician.

Once that’s up and watertight then we’d knock through from the existing farmhouse ourselves before getting a plasterer and decorator etc. Finally we’d paint the outside of the panels so it doesn’t look like panels etc.

As I said I’ve not got drawings and not asked a builder for a quote using normal brickwork so I’ve nothing to compare to but 6m x 10m x 2 stories is 120 sqm so I can’t see it being less than £50,000.

Any views?

Not having a cavity then

 

[Forever Fendt]

I’m looking at knocking an aged conservatory down and then putting an bigger extension on the farm house in its place. I haven’t asked an architect yet or local planners so only thinking out loud at the minute, but has anybody ever or know of a house extension built out of concrete panels. I’m looking at something that’s 2 story. As a stand-alone basically it would be 6m x 10m give or take and be 6m high.
Ive spoken to a concrete panel supplier and basically they make 150mm thick reinforced panels x 1m high and any length up to 8m for roughly £250 each. This means I can get the 3 external wall panels for about £7,000. This includes 1m of panels underground for foundations. These would be held in place by metal gurders on each corner and in the middle of the 10m run.
We can set these into the existing farmhouse wall to join the extension into the farmhouse. We could do all that ourselves with the assistance of a local one man band farm shed maker. We could also then put in the ceiling separating the ground and first floor as well as putting on a slightly pitched flat roof.
Very roughly fag packet figures we could do that for around £15,000 which is double counting farm labour we are paying anyway even if we don’t do this ourselves. Includes all metal work.

At that point I’d then get in some carpenters to create the rooms which effectively would be 3 upstairs and a single space downstairs and then obviously plumber and electrician.

Once that’s up and watertight then we’d knock through from the existing farmhouse ourselves before getting a plasterer and decorator etc. Finally we’d paint the outside of the panels so it doesn’t look like panels etc.

As I said I’ve not got drawings and not asked a builder for a quote using normal brickwork so I’ve nothing to compare to but 6m x 10m x 2 stories is 120 sqm so I can’t see it being less than £50,000.

Any views?

its a crap idea will always look like panels and your going to have difficulty complying with building regs and most likely devalue your house ,On the upside could get you some panels a bit less than you have been quoted

 

[Lofty1984]

Can’t see how you’d ever be able to do a tidy job unless you built internal Walls to create a cavity, have you priced up what it would cost concrete blocks you could lay them yourself with some guidance

 

[Nearly]

Try Structural Insulated Panels?

 

[puppet]

Building regs will specify what insulation you will need.
There is a very modern house near here which was built of pre-constructed panels some poured concrete and a portal frame. Looks great but maybe expensive.
Company is 3b construction

 

[harrow]

What about a Sarah Beeny job ?

 

[goodevans]

I’m looking at knocking an aged conservatory down and then putting an bigger extension on the farm house in its place. I haven’t asked an architect yet or local planners so only thinking out loud at the minute, but has anybody ever or know of a house extension built out of concrete panels. I’m looking at something that’s 2 story. As a stand-alone basically it would be 6m x 10m give or take and be 6m high.
Ive spoken to a concrete panel supplier and basically they make 150mm thick reinforced panels x 1m high and any length up to 8m for roughly £250 each. This means I can get the 3 external wall panels for about £7,000. This includes 1m of panels underground for foundations. These would be held in place by metal gurders on each corner and in the middle of the 10m run.
We can set these into the existing farmhouse wall to join the extension into the farmhouse. We could do all that ourselves with the assistance of a local one man band farm shed maker. We could also then put in the ceiling separating the ground and first floor as well as putting on a slightly pitched flat roof.
Very roughly fag packet figures we could do that for around £15,000 which is double counting farm labour we are paying anyway even if we don’t do this ourselves. Includes all metal work.

At that point I’d then get in some carpenters to create the rooms which effectively would be 3 upstairs and a single space downstairs and then obviously plumber and electrician.

Once that’s up and watertight then we’d knock through from the existing farmhouse ourselves before getting a plasterer and decorator etc. Finally we’d paint the outside of the panels so it doesn’t look like panels etc.

As I said I’ve not got drawings and not asked a builder for a quote using normal brickwork so I’ve nothing to compare to but 6m x 10m x 2 stories is 120 sqm so I can’t see it being less than £50,000.

Any views?

Not without windows

 

[glasshouse]

I’m looking at knocking an aged conservatory down and then putting an bigger extension on the farm house in its place. I haven’t asked an architect yet or local planners so only thinking out loud at the minute, but has anybody ever or know of a house extension built out of concrete panels. I’m looking at something that’s 2 story. As a stand-alone basically it would be 6m x 10m give or take and be 6m high.
Ive spoken to a concrete panel supplier and basically they make 150mm thick reinforced panels x 1m high and any length up to 8m for roughly £250 each. This means I can get the 3 external wall panels for about £7,000. This includes 1m of panels underground for foundations. These would be held in place by metal gurders on each corner and in the middle of the 10m run.
We can set these into the existing farmhouse wall to join the extension into the farmhouse. We could do all that ourselves with the assistance of a local one man band farm shed maker. We could also then put in the ceiling separating the ground and first floor as well as putting on a slightly pitched flat roof.
Very roughly fag packet figures we could do that for around £15,000 which is double counting farm labour we are paying anyway even if we don’t do this ourselves. Includes all metal work.

At that point I’d then get in some carpenters to create the rooms which effectively would be 3 upstairs and a single space downstairs and then obviously plumber and electrician.

Once that’s up and watertight then we’d knock through from the existing farmhouse ourselves before getting a plasterer and decorator etc. Finally we’d paint the outside of the panels so it doesn’t look like panels etc.

As I said I’ve not got drawings and not asked a builder for a quote using normal brickwork so I’ve nothing to compare to but 6m x 10m x 2 stories is 120 sqm so I can’t see it being less than £50,000.

Any views?

I used concrete panels to sit a conservatory on. Worked fine, but wouldn't want to go high

 

[br jones]

The panels will sweat ,and every time you fix into them the risk of cracking increases ,just had a price for an extension in timber frame 55sqm ,2 floors ,with roof trusses ,8 grand ,why would you bother with crappy cold ,hard to work with concrete

 

[Beefsmith]

Not having a cavity then

We would insulate on the inside of the concrete panel between the plasterboard but the plaster would do that hence why I didn’t mention it.

 

[Beefsmith]

its a crap idea will always look like panels and your going to have difficulty complying with building regs and most likely devalue your house ,On the upside could get you some panels a bit less than you have been quoted

It wouldn’t look like concrete panels when done as I said. The panel price was from literally one supplier. We’d of course shop around.

 

[Beefsmith]

Not without windows

Missed that off but yes we’d cut windows on with a diamond saw and then they’d have proper frames put in.

 

[Beefsmith]

I used concrete panels to sit a conservatory on. Worked fine, but wouldn't want to go high

We’ve got concrete panels in sheds surcharged to thousands of tonnes so thought it would be fine.

 

[glasshouse]

We’ve got concrete panels in sheds surcharged to thousands of tonnes so thought it would be fine.

It will be fine, but overkill

 

[som farmer]

wooden frame, insulated, easy windows, electric and heating pipes, and it meets spec, do it your self if a handy man. Ours was faced with nat stone, from our own quarrey, but could be wood, render. Panels can only look odd and cold.

 

[Lincs Lass]

Company up the road from me called Techrete ,,they make panels to any spec,colour and designs you want , they made everything for the London Olympic village

 

[glasshouse]

Better with those polystyrene moulds

 

[Pebd99]

Local house builders are just going through certification of concrete panels for houses. They’re built in with insulation. So it is possible to do it.

 

[Macsky]

There were a few built around here out of pre cast panels, known as Dorran houses. They are terrible, and you would struggle to get a mortgage on them and possibly insurance.